aboutsummaryrefslogtreecommitdiffstats
path: root/src/09/solve.py
blob: f0aa4bf2cbc30195326ce27c40e4f27ade9676f0 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
import sys
sys.path.append("../common")
import aoc

from collections import deque

words = aoc.data.split(" ")
playercount = int(words[0])
lastworth = int(words[6])

def highscore(playercount, lastworth):
    lastworth = lastworth - lastworth % 23

    players = [0 for x in range(playercount)]
    marbles = deque([0])
    pos = 0
    for i in range(1, lastworth+1):
        if i % 23 == 0:
            cp = (i-1) % playercount
            players[cp] += i + marbles[(len(marbles) + pos - 7) % len(marbles)]
            marbles.rotate((len(marbles) - 1 - pos) + 7)
            marbles.pop()
            pos = 0
        else:
            if i < 3:
                pos = 1
                marbles.rotate(1)
                marbles.append(i)
            else:
                marbles.rotate((len(marbles)- 1 -pos) - 1)
                marbles.append(i)
                pos = len(marbles)-1

    return max(players)


def solve1(args):
    return highscore(playercount, lastworth)

def solve2(args):
    return highscore(playercount, lastworth * 100)

aoc.run(solve1, solve2, sols=[412127, 3482394794])